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Old 17-08-2015, 11:52   #1
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Genoa leech flapping very loudly

Hi all, quick question. I have a Hunter 27' with a 145 Genoa. Whenever we're close-hauled, the leech starts flapping pretty loudly. Even when sail trim looks fine from the tell tales, it still seems to be happening. I tried changing the block position on the toe rail to change the angle but it didn't seem to change things too much. Is there something else I can try that I haven't thought of?

I imagine it's a problem with me and not the sail. I attached a video of it happening.

Thanks for any ideas.
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Old 17-08-2015, 12:15   #2
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Re: Genoa leech flapping very loudly

Does it have a leech line? Tighten it.

Dave
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Old 17-08-2015, 12:18   #3
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Re: Genoa leech flapping very loudly

Do you have a leech line in your genny?

Mine frayed at the cleat and now have this problem as well.
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Old 17-08-2015, 12:23   #4
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Re: Genoa leech flapping very loudly

New to boating and the boat, didn't even know the leech line was a thing, I'll check it out next time we're there.
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Old 17-08-2015, 12:32   #5
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Re: Genoa leech flapping very loudly

Look for a small jam cleat on the leech down near the clew where your sheets attach.

Tighten up as 2hulls said.

I do it while sailing, just enough to stop the flapping. Mine was set and forget, until it parted from stress I guess.
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Old 17-08-2015, 13:54   #6
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Re: Genoa leech flapping very loudly

Actually, it's meant to be adjustable.

There was another thread on this subject last week. As mentioned above, you should be able to get rid of leech flutter with the leech line, unless the sail has already trashed itself.

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Old 17-08-2015, 14:16   #7
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Re: Genoa leech flapping very loudly

Don't over tighten it. Just enough to get most of the flap out. Otherwise you can rip the line out when furling.
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Old 17-08-2015, 16:21   #8
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Re: Genoa leech flapping very loudly

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Originally Posted by MarkJ View Post
Don't over tighten it. Just enough to get most of the flap out. Otherwise you can rip the line out when furling.
That's probably what happened to mine.

Maybe slacked to furl? And adjust each time the sail is unfurled and set?
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Old 17-08-2015, 18:33   #9
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Re: Genoa leech flapping very loudly

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Originally Posted by four winds View Post
That's probably what happened to mine.

Maybe slacked to furl? And adjust each time the sail is unfurled and set?
Yes, and only just tight enough to quiet the leech, not put a "hook" in it.

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Old 17-08-2015, 19:15   #10
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Re: Genoa leech flapping very loudly

Quote:
Originally Posted by MarkJ View Post
Don't over tighten it. Just enough to get most of the flap out. Otherwise you can rip the line out when furling.
+1!

Exactly.

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Old 18-08-2015, 09:21   #11
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Re: Genoa leech flapping very loudly

Hi.
Don't forget to ease it before furling the sail at the end of the day. It will help the sail to last long with a good shape.

Best Whishes.
Jorge
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Old 18-08-2015, 09:35   #12
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Re: Genoa leech flapping very loudly

Tighten your luffline and try moving the genoa car foreward and backwards until the clew makes a 45 degree angle with the sheet.. Your sheet should also be tight enough when beating.
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Old 18-08-2015, 09:41   #13
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Re: Genoa leech flapping very loudly

Sorry, tighten your leechline. Plus the rest as mentioned.
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Old 18-08-2015, 14:55   #14
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Re: Genoa leech flapping very loudly

Leach line as others say. Also you can experiment with the fore and aft adjustment of the clew angle on the Genoa track. You should have several sets of tell tails along the length of the luff. Ideally they should all be streaming and then the whole sail is working properly.
Make big changes to the position and see what happens then fine tune it. That may also take away the flapping.
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Old 02-09-2015, 19:23   #15
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Re: Genoa leech flapping very loudly

Thanks everyone. It was the leech line as mentioned. Tightened and everything was good.


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